Stenospermation ellipticum Croat & D.C.Bay

Epiphytic, rarely terrestrial; stem appressed-climbing; internodes short, often obscured by petiole bases, 5–15 mm x 1.5–3 cm, as long as broad; roots few per node; cataphylls deciduous. LEAVES erect to  erect-spreading; petioles 16.5–49 cm, yellow-green, semiglossy, longitudinally striate near base, terete to subterete above sheath, weakly to narrowly sulcate above sheath, petiole and sheath drying dark olivebrown; sheath 10.5–23 cm, 0.3–0.6(0.8) times as long as petiole, densely dark green-speckled; margin of sheath drying papery and pale, one margin acute and one margin rounded at apex; blades elliptic, coriaceous, rarely subcoriaceous, broadly rounded and abruptly acuminate at apex, obtuse at base, 23.5–35 x 8.3–17 cm, 1.7–3.1 times longer than wide, 0.6–1.6(1.9) times longer than petiole, broadest at middle, upper surface glossy to semiglossy, dark green to yellow-green, drying conspicuously glossy, dark olivegreen, many minute white raphides easily visible with a 10x lens, lower surface semiglossy to matte, paler to much paler than above, drying glossy and slightly paler than above; midrib narrowly sunken and marginally discolorous above, convex and paler below; primary lateral veins departing midrib at 30o–50o angles, weakly visible to obscure above, obscure below, drying raised above, barely raised below. INFLORESCENCES 1 per axil, erect; peduncle 21–34 cm x 2–3 mm (dry), cernuous; spathe green, promptly deciduous; spadix sessile, cylindrical, 5.5–6.5 cm x 6–7 mm (dry), yellow. Flowers hexagonal to irregularly square; stigma round, 0.3–0.5 mm diam.; stamens with filaments to 1 mm long; thecae oblong. INFRUCTESCENCE unknown.